NAS with Ryzen 5 3600?

Dear community, I come for some advise with my first ever DIY NAS.
Usage:

  • replacing google photos and google docs with nexcloud/photos/onlyoffice
  • trying different virtualization technologies and service applications (I’m a researcher) : docker, proxmox or openstack ; yunohost
  • home automation for lights, heaters, sensors (I have at least 4 USB “keys” for zigbee, enocean, rfxcomm, zwave - I’m using openHAB and node-red
    My constraints:
  • case max 21cm by 60cm by 60cm
  • having one 2.5 Gb ethernet port (I do have a 2.5 Gbps connection at home with my internet provier)
  • multiple USB
  • would loke to have 6 3.5" bays , maybe some 2.5"
  • maybe one usb c port that I may use
  • budget without the disks : 600 to 700 €

I also chose the Ryzen 5 3600 because it is the best performance/price ratio here PassMark CPU Value Chart - Performance / Price of available CPUs (cpubenchmark.net)

so my list is here
https://fr.pcpartpicker.com/list/LDK3vf

what do you think ?
Thank you for your advice !

PCPartPicker Part List

Type Item Price
CPU AMD Ryzen 5 3600 3.6 GHz 6-Core Processor €205.00 @ Amazon France
Motherboard Asus TUF GAMING B550-PLUS ATX AM4 Motherboard €160.00 @ Amazon France
Memory Corsair Vengeance LPX 16 GB (2 x 8 GB) DDR4-2400 CL14 Memory €56.69 @ Amazon France
Storage Western Digital Blue 500 GB M.2-2280 Solid State Drive €55.86 @ Amazon France
Video Card MSI GeForce GT 710 1 GB Video Card €42.15 @ Cdiscount
Case Cooler Master N300 ATX Mid Tower Case €66.13 @ Amazon France
Power Supply Gigabyte P-B 450 W 80+ Bronze Certified ATX Power Supply €47.27 @ Alternate
Prices include shipping, taxes, rebates, and discounts
Total €633.10
Generated by PCPartPicker 2021-02-05 22:56 CET+0100